Figure 5
From: Carrier thermometry of cold ytterbium atoms in an optical lattice clock

The heating and the dependence of temperature on the lattice power. (a) Intensity noise power spectrum and most of the intensity noise are distributed at frequencies of 178.5 kHz and 89.25 kHz. (b) The spectrum of atomic excitation at different lattice powers of 1.5 W and 1 W. The blue lines are at the detuning of ±89.25 kHz. (c) The dependence of the temperature on the lattice power. The error bar represents the 1σ uncertainty.